For whatever reason, I simply can't get this to work. I tried your two rdr rules, reloaded them into ipnat, but I am still unable to connect to the webserver from my client. For clarity's sake, let me draw a picture of my setup:
You also need correspoding rules in ipf.conf to actually allow this traffic to pass through.
RDR is a two-phase process. Once you get it to work, you'll wonder how you could have ever done without it.
It's one of the coolest freatures in IPFilter.
